Modifying local accounts with powershell

Question

I'm trying to set the properties of a local account on a bunch of servers to "password never expires". This is the best I could figure out. I keep getting:

Get-WmiObject : Invalid parameter 
At C:\Users\xxxxxx\AppData\Local\Temp\4f06fa1c-61da-4c65-ac0b-a4167d83d51c.ps1:4 char:14
+ Get-WmiObject <<<<  -class Win32_UserAccount -Filter "name = 'localaccount'" -       ComputerName $server | Set-WmiInstance -Argument @{PasswordExpires = 0}
+ CategoryInfo          : InvalidOperation: (:) [Get-WmiObject], ManagementException
+ FullyQualifiedErrorId : GetWMIManagementException,Microsoft.PowerShell.Commands.GetWmiObjectCommand

--------- Here's what I am trying ------------

$servers = Get-Item c:\list.txt
foreach ($server in $servers)
{
    Get-WmiObject -class Win32_UserAccount -Filter "name = 'localaccount'" -ComputerName $server | Set-WmiInstance -Argument @{PasswordExpires = 0}
}

Thank you!

Ansgar Wiechers · Accepted Answer · 2014-03-06 19:55:17Z

2

Your mistake is in this line:

$servers = Get-Item c:\list.txt

The Get-Item cmdlet returns a FileInfo object, not the content of the file. For reading the content into a variable you need the Get-Content cmdlet.

This should work:

Get-Content 'c:\list.txt' | % {
  gwmi Win32_UserAccount -Computer $_ -Filter "name='localaccount'" |
     Set-WmiInstance -Argument @{PasswordExpires = $false}
}

You could also do the property change like this (source):

Get-Content 'c:\list.txt' | % {
  $account = gwmi Win32_UserAccount -Computer $_ -Filter "name='localaccount'"
  $account.PasswordExpires = $false
  $account.Put()
}

answered Mar 6, 2014 at 19:55

Ansgar Wiechers

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